..Results of this study provide evidence that the mitochondrial gene activities of Polyandrocarpa can be reversed during senescence and budding, suggesting that they are regulated by nuclear polycomb group genes...

..Recent evidence suggests that ascidian germ cells can regenerate from cells other than embryonic germline. An ensemble of the embryonic stringency of germ cell lineage and the postembryonic flexibility of gonad formation is discussed...

Role of Vasa, Piwi, and Myc-expressing coelomic cells in gonad regeneration of the colonial tunicate, Botryllus primigenus

..We conclude, therefore, that in vascular buds of B. primigenus, female germ cells can develop from homing Vasa(+) cells in the blood, and that other gonad components can arise from coelomic Vasa(-)/Piwi(+)/Myc(+) cells...

..We conclude that in P. misakiensis, PmRACK1 plays roles in mesenchymal cell recruitment during formation of somatic and gonad tissues, which contributes to zooidal growth and sexual and asexual reproduction...

Hemoblasts in colonial tunicates: are they stem cells or tissue-restricted progenitor cells?